"Sensory integration refers to the ability to take in information from the senses--visual, tactile, auditory, taste, and smell--and process it...The ability to integrate information enables us to get the big picture" (Klass & Costello 2003).  In addition to the five senses we all know from science class, we also receive information from other systems including the muscles and joints relating to balance (vestibular), movement (kinesthetic) and spatial awareness (proprioception).  All of us have some deficits in sensory processing, and all of us have strengths and weaknesses.  By looking at a child's strengths in sensory processing and his/her learning style, we use the strengths to help overcome the weaknesses.  Sensory integrated therapy involves all of the senses so the child has multiple ways in which to acquire the knowledge and foundational understanding required to succeed communicatively.  

Klass, P. & Costello, E. (2003) Quirky Kids:  Understanding and Helping Your Child who Doesn't Fit In. Ballantine Books.  51.